NEMA 7 Temperature Switches

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9 Products

Hazardous Location Threaded Temperature Switches

Often used in hazardous locations, such as chemical plants, refineries, and grain elevators, these switches have a housing that’s UL listed for environments with flammable gases, combustible dust, and ignitable fibers. It is UL listed for use in Class I, Divisions 1 and 2, Groups B, C, and D; Class II, Divisions 1 and 2, Groups E, F, and G; and Class III, Divisions 1 and 2 hazardous locations. The housing also meets NEMA 4X for use in washdown environments with splashing water, corrosive liquid, and dust. Install the threaded probe directly into tanks, pipelines, and other process components to turn heating equipment on or off at a specified temperature. Set actuation points with the adjustment dial.

Switch with one actuation point has one SPDT (single pole, double throw) relay. The relay can be set to turn one circuit from off to on (normally open) or from on to off (normally closed).

Switch with two actuation points has two SPDT (single pole, double throw) relays. Each relay can be set to turn one circuit from off to on (normally open) or from on to off (normally closed).

						Probe
Temp. Range, °F	No. of Actuation Points	Actuation Tolerance	No. of Circuits Controlled	Electrical Phase	Max. Switching Current @ Voltage	Dia.	Lg.	Material	Ht.	Wd.	Dp.	Environmental Rating		Each
Threaded Brass Probe—1/2 NPT Male
0° to 225°	1	±1%	1	Single	15 A @ 125 V AC 15 A @ 250 V AC 15 A @ 480 V AC	9/16"	1 7/8"	Brass	10"	5 1/8"	5 3/16"	NEC Class I Divisions 1, 2 Groups B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 NEC Zone 1 Groups IIB, IIA IEC Zone 1 Groups IIC, IIB, IIA IEC Zone 21 Groups IIIC, IIIB, IIIA IP66 NEMA 4X NEMA 7 NEMA 9	0000000	0000000
0° to 225°	2	±1%	2	Single	15 A @ 125 V AC 15 A @ 250 V AC 15 A @ 480 V AC	9/16"	1 7/8"	Brass	10"	5 1/8"	5 3/16"	NEC Class I Divisions 1, 2 Groups B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 NEC Zone 1 Groups IIB, IIA IEC Zone 1 Groups IIC, IIB, IIA IEC Zone 21 Groups IIIC, IIIB, IIIA IP66 NEMA 4X NEMA 7 NEMA 9	0000000	00000000

Hazardous Location Wall-Mount Temperature Switches

With Threaded Probe

With Unthreaded Probe

Turn heating equipment on or off in environments with flammable gases, combustible dust, and ignitable fibers, such as chemical plants, refineries, and grain elevators. The switch housing is UL listed for use in Class I, Divisions 1 and 2, Groups B, C, and D; Class II, Divisions 1 and 2, Groups E, F, and G; and Class III, Divisions 1 and 2 hazardous locations. It also meets NEMA 4X for use in washdown environments with splashing water, corrosive liquid, and dust. Switches have a probe on a cable for remote temperature readings. Set actuation points with the adjustment dial.

Switch with one actuation point has one SPDT (single pole, double throw) relay. The relay can be set to turn one circuit from off to on (normally open) or from on to off (normally closed). The probe has 1/2 NPT male threads for installation directly into tanks, pipelines, and other process components. It comes with a bushing that adapts the thread size to 3/4 NPT male.

Switch with two actuation points has two SPDT (single pole, double throw) relays. Each relay can be set to turn one circuit from off to on (normally open) or from on to off (normally closed).

					Probe
Temp. Range, °F	Temp. Accuracy, °F	No. of Actuation Points	Electrical Phase	Max. Switching Current	Dia.	Lg.	Ht.	Wd.	Dp.	Environmental Rating	Includes		Each
SPDT—1 Circuit Controlled
Threaded Stainless Steel Probe—1/2 NPT Male
30° to 250°	±5°	1	Single	15 A @ 125 V AC 15 A @ 250 V AC 15 A @ 480 V AC	3/8"	2 5/8"	9 5/16"	5 1/8"	5 3/16"	NEC Class I Divisions 1, 2 Groups B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 NEC Zone 1 Groups IIB, IIA IEC Zone 1 Groups IIC, IIB, IIA IEC Zone 21 Groups IIIC, IIIB, IIIA IP66 NEMA 4X NEMA 7 NEMA 9	1/2 × 3/4 NPT Adapter Bushing	0000000	000000000
SPDT—2 Circuit Controlled
Unthreaded Stainless Steel Probe
30° to 250°	±5°	2	Single	15 A @ 125 V AC 15 A @ 250 V AC 15 A @ 480 V AC	3/8"	2 5/8"	9 5/16"	5 1/8"	5 3/16"	NEC Class I Divisions 1, 2 Groups B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 NEC Zone 1 Groups IIB, IIA IEC Zone 1 Groups IIC, IIB, IIA IEC Zone 21 Groups IIIC, IIIB, IIIA IP66 NEMA 4X NEMA 7 NEMA 9	__	0000000	00000000

Packing Seals and Fittings

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Each

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Adjustable-Power Temperature Controllers for Plug-In Heaters

Regulate the amount of power flowing to your heater with the turn of a dial. Instead of a temperature sensor or input, these controllers work like a dimmer on a light switch. To incorporate them, first plug in the temperature controller, then plug your heater into the socket on the bottom of the controller. These controllers are NEMA rated for use in hazardous, corrosive, dusty, and washdown environments.

			Plug			Socket
Output Voltage Range	Current, A	Input Voltage	Type	NEMA Style	End Shape	NEMA Style	End Shape	Cord Lg., ft.	Ht.	Wd.	Dp.	Environmental Rating		Each
36V AC to 120V AC	10	120V AC	Three Prong	5-15	Straight	5-15	Straight	6	4 5/8"	2 11/16"	2"	NEMA 4X, NEMA 7	000000	000000

Remote-Sensor Hazardous Location Line-Voltage Thermostats

Place sensor in enclosures or different rooms than the rest of the thermostat to control temperature from outside the space. Use to regulate line-voltage HVAC systems where flammable gases, vapors, and dust are present. Thermostats are rated Class I, Divisions 1 and 2, Group D; and Class II, Divisions 1 and 2, Groups E, F, and G.

				Overall
Voltage	Current, A	Temp. Setting, °F	Switch Type	Ht.	Wd.	Dp.	Sensor Cord Lg., ft.	Mounting Fasteners Included	Mounting Hole Dia.	Specifications Met	Environmental Rating		Each
For Air Conditioners and Heaters
120V AC-277V AC	22	20° to 80°	SPDT	5 7/8"	3"	3 1/4"	6	No	3/8"	UL Listed, CSA Certified	NEC Class I Divisions 1, 2 Group D NEC Class II Divisions 1, 2 Groups E, F, G NEMA 7 NEMA 9	0000000	0000000

Hazardous Location Line-Voltage Thermostats

Use to regulate line-voltage HVAC systems where flammable gases, vapors, and dust are present. Thermostats are rated Class I, Divisions 1 and 2, Groups C and D; and Class II, Divisions 1 and 2, Groups E, F, and G.

				Overall
Voltage	Current, A	Temp. Setting, °F	Switch Type	Ht.	Wd.	Dp.	Mounting Fasteners Included	Mounting Hole Dia.	Specifications Met	Environmental Rating		Each
For Air Conditioners and Heaters
24V AC-277V AC	22	50° to 90°	SPDT	5 3/4"	6 3/8"	5 5/8"	No	1/4"	UL Listed, CSA Certified	NEC Class I Divisions 1, 2 Groups C, D NEC Class II Divisions 1, 2 Groups E, F, G NEMA 7	0000000	0000000
24V AC-277V AC	22	50° to 90°	DPDT	5 3/4"	6 3/8"	5 5/8"	No	1/4"	UL Listed, CSA Certified	NEC Class I Divisions 1, 2 Groups C, D NEC Class II Divisions 1, 2 Groups E, F, G NEMA 7	0000000	000000